Inheritance of Resistance in Two Triticum aestivum Lines to Russian Wheat Aphid (Hornoptera: Aphididae)
Author: TOIT, Du F.
Source: Journal of Economic Entomology, Volume 82, Number 4, August 1989 , pp. 1251-1253(3)
Publisher: Entomological Society of America
Abstract:Studies were done to determine the inheritance of resistance in two wheat (Triticum aestivum L.) lines, PI 137739 and PI 262660, that were previously identified as resistant to Russian wheat aphid, Diuraphis noxia (Mordvilko), and to establish whether resistance was governed by the same or different genes. The resistant lines were crossed with the cultivars 'Tugela' and 'Betta.' Resistance reactions of backcross, F" and Fa seedlings in greenhouse tests indicated that resistance in each line is controlled by a single dominant gene and that these genes are independently inherited. The gene symbols Dn1 and Dn2 are recommended for the resistance genes in PI 137739 and PI 262660, respectively.
Document Type: Research Article
Publication date: August 1, 1989
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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